Light snow is to fall this afternoon at the high elevations where the snowpack is mostly stable and avalanche activity is unlikely. At the mid and low elevations, the potential for wet loose slides will develop as increasing temperatures and potential rain weaken the upper portion of the snowpack. Roof slides will become possible this afternoon and evening.
The chance for wet slide activity will increase today in steep terrain, particularly at the low elevations. Yesterday a natural wet loose slide impacted the highway in the Snake River Canyon.
The current weak system will continue to bring periods of light snow, particularly at the higher elevations this evening and into the early morning hours of Monday. Additional accumulations of an inch or two are possible. By sunrise, precipitation should have come to end and skies are to quickly clear. Temperatures are to reach into the low thirties at the higher elevations and into the upper forties at the low elevations. Winds are to be westerly with five to fifteen mile per hour averages.In the Teton area, the general avalanche hazard will be Low in the morning, increasing to Moderate in the afternoon as wet slides become possible. In the Southwest Trails and Togwotee Pass areas, the danger will be Moderate as an slight but possible chance remains large triggers to cause deep slab avalanches all day and wet slides will also become possible in the afternoon. Roof slides remain a threat.
